>> it's the one part of the economy across globally that the u.s. excels in and continues to excel in, and, you know, there's been a lot of job growth in the area, a lot of innovation. some of the stocks are up, not all of them. it's a good time right now especially in an economy that has issued all over the place. >> one of the things that came out in the state of the valley report is san francisco has grown as a tech hub and it's now really san jose, san francisco and everything in between is really the tech center. talk more about that. how did that happen? did it happen overnight? >> well, some of the lovely ed lee tax cuts are nice. for twitter and things like that. there's a certain class of people in these new company like twitter, like zingo, some of the others, many, many, others that want to live in a city, live in a urban environment. don't want to get on a google bus and drive down 101 every day. google and others want to serve the population of their employees. it's food to have opportunities in both places. so this urban, i call them u